package com.rd.teacher.jichao.day22;

public class Test30 {

    int x;

    public static void main(String[] args) {
        Test30 d = new Test30();
        d.x = 8;
        show(d);
        System.out.println("x=" + d.x);
    }

    public static void show(Test30 d) {
        d.x = 7;
    }
}